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staticattic

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VW Do-It-Yourselfer
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Reply with quote  #1 
Is there a way to test a transmission before bolting an engine up to it and driving around with it? I would rather know if my transmission was bad before I took all of the time to put everything together only to have to take all back apart again to pull the tranny.

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Jeff
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olspeed

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Reply with quote  #2 
About the only thing you can do with out a test bench is put a shift coupling on the shift fork in the nose cone. Then test shift it through all the gears and spin the input shaft and make sure the axle flanges turn. With a test bench you can put some torque to things and make sure that it stays in gear. The only way to do this with out one that I know of is to put it in the car.
Olspeed

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staticattic

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Reply with quote  #3 

Yeah, I kind of figured that would be the response. I was going to pull it and take it down to the local VW shop, but by the time they add in their per hour charges, I would probably be better off just buying a new rebuilt one. Other than that, like you said, the only other thing I know to do is actually drive with it and see if it pulls correctly in all gears, pops out of gear, etc. Besides my pushing it around in the garage, the tranny has sat still for 26 plus years. I am seriously just thinking about getting a new one anyway.


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Jeff
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Ryan

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Reply with quote  #4 
You can't really test it without driving since there is no way to test the synchros for shifting.  What is the code on the tranny?  Depending on what it's got in it, you may want to have it rebuilt instead of buying a rebuilt one, you're looking for an 'AT' coded box.  Shops will gladly take your core with better parts and sell you something else without telling you.  A good used 9 tooth mainshaft sells for about $150, a good used 3.88 R&P will sell for close to $200 and a good SSC case will go for about $150.  That's how much they would charge you to put those parts in a new box (rebuilt) box, but as far as cores go, you would only get the standard $50 for the whole deal.
My guy will tear down and inspect any box I bring him for a flat $50 fee.  So whenever I need my box serviced I pull one from the junk yard for $70, pay $50 to have the parts inspected and $350 to rebuild.  Provided my diff and 3/4 gear stack (they're all aftermarket) are still good, that's a $1500 box that gets rebuilt like new for under $500. 
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